21122111010003 has 16 divisors (see below), whose sum is σ = 28595686793856. Its totient is φ = 13865155571520.

The previous prime is 21122111010001. The next prime is 21122111010019. The reversal of 21122111010003 is 30001011122112.

It is not a de Polignac number, because 21122111010003 - 2¹ = 21122111010001 is a prime.

It is a super-2 number, since 2×21122111010003² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21122111010001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22576401 + ... + 23493362.

It is an arithmetic number, because the mean of its divisors is an integer number (1787230424616).

Almost surely, 2^{21122111010003} is an apocalyptic number.

21122111010003 is a deficient number, since it is larger than the sum of its proper divisors (7473575783853).

21122111010003 is a wasteful number, since it uses less digits than its factorization.

21122111010003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46072114.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 21122111010003 its reverse (30001011122112), we get a palindrome (51123122132115).

The spelling of 21122111010003 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred eleven million, ten thousand, three".